Horizontal ingot mold



April 28, 1925. 1,535,249

J. E. PERRY Filed Feb. 15, 1923 2 Sheets-Sheet 1 W way-1 51 H4. 4 75 7 4 WW" Ml] V I 26 awwemtoz Jo/m E.Perry 32 Mammy g J. E. PERRY HORIZONTAL INGOT MOLD April 28, 1925.

Filed Feb- 15. 192:5

2 SheetsSheet 2 Patented Apr. 28, 1925.

UNITED sTATEs PATENT OFFICE.

JOHN EDMUND PERRY, F SHARON, PENNSYLVANIA, ASSIGNOE TO 'V'AL'LEY Il/[OULD AND IRON CORPORATION, 01? SI-IARllSVIL'LKE, PENNSYLVANIA,- ACORPORATION OF NEXV YORK.

HORIZONTAL INGU'I. IlEOLD.

Application filed February 15, 1923. Serial No. 619,301.

T0 whom 7 it may concern:

Be it known that I, dorm E. PERRY, a citizen of the United gtates, residing at Sharon, in the county oi Mercer, State of Pennsylvania, have invented certain new and useful Improvements in Horizontal ingot Molds, of which the following is a specification.

The present invention relates broadly to metallurgy and more especiallyto horizontal in got molds.

Various typesof horizontal ingot molds have heretofore been proposed in the steel arts One type has comprised an inverted trough adapted to be set directly on a casting stool orthe like- The diliiculty with this type of mold has resided more especially in the possibility or the casting stool warping and requiring luting to form a metal tight joint between the mold. and the stool. A still iurther diflicultyhas been the diificulty of accurately controllingthe heat absorbing capacity oiithe stool and the mold. A. still further difliculty with this type of mold F has been that only a plane side of the ingot is exposed for gripping and therefore it is diflicult to get at the ingot for stripping the ingot from the mold where the ingot tended to stick. It has also been proposed to make horizontal ingot molds in sections, but so far as islmown the ingot molds in the prior art of this type have presented matters oi? ditficulty both in stripping and in preventing the escape of steel "from joints which would tend to loosen due to warping of the mold parts, and also the difficulty of proportioning the chill metal in the mold due to mechanical or physical characteristics in the mold itself.

The ingot mold comprising the subject of invention disclosed in the present application isdisclosed in my co-pendingapplication Serial Number 618,206 filed February 10, 1923 which claims a process and an ingot, which process may be carried out in the present mold and which ingot may under proper conditions be cast in this mold. The present invention overcomes the difiiculties of the known prior art by providing a horizontal ingot mold arranged in sections which separate in such manner as to expose a large surface or": the ingot so that the ingot may be removed without diliiculty, and, the matrix of the moldis so arranged relatively to the lines of separation that the angles, or

sides of the matrix do not overhang any plane developedby the stripping of the ingot from the mold. The mold is also so constructed that the placing of the mold parts together automatically centers these parts in their proper relationship so that the mold may be assembledoor disassembled by unskilled labor. Furthermore, the mold sections form the supporting members for a suitable runner tile, which runner tile is free to be lifted from the mold when the upper section of the mold is removed- A still further attribute of the present invention is the provision of a runner tile with an opening of such size as to comprise a sufficient feed reservoir to supply molten metal to teed the ingot while it is shrinking and solidifying. The inlet opening from the runner tile is so arranged that the center thereof is slightly above the horizontal axis of the matrix. The lowermost portion oi the matrix is adapted to be substantially horizontal, with the upper portion of the matrix inclined toward the runner tile which is slightly less than the runner tile space between the mold sections so that a gas out let is provided adjacent the inner'face of this runner tile.

The principal object of the present invention is to provide a horizontal mold with angular separation. faces between the upper and lower sections constructed in such manner as to automatically center the upper section by gravity when the parts are placed together.

Another object of the present invention is a horizontal mold having a matrix therein partly disposed in each of a plurality of sections, with foot end of the matrix comprising a curved surface and with the side walls oif'the mold tapering from the foot toward the head thereof.

Another obj ect of the present invention is a horizontal mold with the matrix of substantially rectangular cross-section and the diagonals of the crosssection being respectively horizontal and vertical; and with the side walls of said mold comprising large heat absorbing capacities adjacent each side of the matrix, with the greatest thickness of heat absorbing metal being substantially opposite the middle oi each of the matrix side Walls.

Lulu

A still further object of the present invention a horizontal ingot mold of the character specified and comprising a bottom section and a top section with the runner tile supported by said sections adjacent the head of the matrix and having an opening therein having a capacity sullicient to take care of the shrinkage of the volume of metal in the matrix during freezing of the metal.

Other and further objects of the present invention will in part he-obvious and will in part be pointed out hereinafter in the specification tollowing by reference to the accompanying drawings forming a part or" this appl'cation, and throughout which like characters are used to indicate like parts.

It is recognized that the present invention may be carried out in constructions which may ditl'er from the disclosure herewith and therefore it is desired that the present disclosure shall be understood as illustrative and not in the limiting sense.

Figure 1 is an elevational view of one term of mold embodying the present invention.

Figure 2 is a plan view of the mold shown in igure 1.

ll ure 3 is an end view of the mold shown in Figure 1 looking at the head end of the mold.

Figure i is an end view looking at the foot of the mold.

Figure is an end view of the head of the mold illustrating a runner tile which extends to the bottom of the matrix.

'ure 6 is a detail perspective view illusthe head end construction oi": the bottom pi cc of mold.

Figure 7 is a detail view illustrating the end construction ot the top piece of the mold.

Referring now to the drawings, which illn trate one embodiment of the mold comprising the present invention the mold is formed of a bottom section 1 which is a trouglrlike member which is so constructed as to maintain the bottom portion of the matrix substantially horizontal or slightly declined toward the head end. The upper section 7 oil the mold comprises an. inverted trough-like i; niber which when placed in postion on the la er section. 1 forms the matrix 8 of the mold. stantially rect ar in cross-section with the corner the rounded or chamfered as at 9 to cause radial crystallization at the corners of the ingot and obviating undue chilling at this point. The foot of the mold is rounded or curved as at 10 and preferably this portion of the matrix is formed as a part ot a hollow spherical surface.

A, runner tile 1.1 is arranged at the head of the mold and provided with a vertical opening 12 which provides a reservoir to supply molten steel as the ingot shrinks. An inlet opening ll extends from the vertical opening 12 into the matrix 8. This runner tile preferably is rectangular in cross-section and may extend downwardly across the end of the matrix and terminate in a square bottom portion as illustrated in Figure 3 or the runner tile may be continued downwardly terminate in a shape substantially co- "icident with the end portions of the lower side walls of the matrix, as illustrated in Figure The top member 7 of the mold is cut away slightly adjacent the runner tile to provide a gas outlet opening 15, and the taper of the matrix causes the upper portion 16 of the matrix to be inclined from the foot toward the gas outlet opening so that the gases are expelled without danger of being trapped during the filling oi the matrix. lreferably the line of sepa 'ation between the mold sections 1 and 7 at the side walls of each section, comprises downwardly and outwardly inclined surfaces 17 and 18 on the lower section 1 and correspondingly downwardly inclined surfaces 19 and 20 on the upper section 7. The head of the mold ot the lower section comprises a right angle shaped vertically extending member 21 which forms a support for two sides of the runner tile 11 and terminates in a shelf 22 which supports the bottom of the tile. The top section 7 at the head end comprises a forwardly extending portion 245 which cooperates with the right angle portion 21 in the lower section to form the third supportin g side tor the runner tile and to complete the head end wall for the matrix. The head section of the top also is provided with a downward extension 25 that cooperates with the bottom section to close the matrix of the mold. The foot of the lower section is provided with a reception bracket 26 that is adapted to receive an angular projection 27 on the upper mold and thus to center the mold members one over the other by the action oi gravity. vlt will he noted by retorence to Figures 4- and 5 that the greatest thickness of heat absorbing metal in the mold is at point 28 which is opposite to th middle of the side walls of the matrix of the mold.

It will be noted by reference to Figures land 5 that the width of the top section as shown in this preferred form oi": the mold. is greater than the width of the bottom section. Since the surface at the mold joint is outwardly and downwardly inclineth the side eoges of the top section of the mold overhang to protect the joint from burring when this top section is set on the casting floor.

Having thus described my invention, what I claim is:

l. A horizontal mold for casting steel ingots comprising a sectional body of chill metal enclosing a matrix of the form of the ingot to be cast the foot of said matrix lit) being curved, a runner brick at thehead oi the matrix and forming the major portion of the head wall thereot, said brick be ing provided with a feeder opening an ranged substantially adjacent the horizontal axis of the matrix, and with the heat absorbing capacity of the mold walls decreasing from the foot oi the matrix toward the head thereof.

2. A horizontal mold for casting stro l ingots comprising a sectional body of chill metal enclosing a matrix ot' the form ot the ingot to be cast, the toot of said matrix being curved, a runner brick at the head of the matrix and forming the major portion ofthe head wall. of the matrix, said brick being provided with a feeder opening having a capacity proportioned to the capacity of the matrix to provide sui'iicient molten metal to feed the metal in the mold during the cooling and with the opening leading to the matrix being arranged to include the horizontal axis 01 the matrix, and with the heat absorbing capacity of the mold walls decreasing from the foot of the matrix toward the head thereof. 7

3. A horizontal mold for casting steel ingots comprising a sectional body of chill metal enclosing a matrix of the form of the ingot to be cast, the foot out said matrix being curved, a runner brick at the head 01" the matrix and forming the major portion of the head wall of the matrix, said'brick being provided with a feeder opening having a capacity suflicient to take care oi shrinkage of the metal in the matrix and arranged so that the upper limit of the opening shall be within the mold body and above the highest point in the matrix.

4s. A horizontal ingot mold for casting steel ingots comprising a mold body in sections, said body being provided with a matrix having a substantially rectangular cross-section, the corners of the matrix being rounded to cause radial crystallization to form at said corners, said matrix having the diagonals thereof substantially vertical and horizontal respectively, said matrix tapering from the head of the mold toward the foot thereof, the lowermost portion of the matrix being substantially horizontal and the uppermost portion of the matrix being inclined toward the head of the mold, a gas outlet at the head of the mold and leading from the uppermost portion of the matrix. 7

A horizontal ingot mold for casting steel ingots comprising a mold body in sections, said body being provided with a matrix having a substantially rectangular cross-section, the corners of the matrix be ing rounded to cause radial crystallization to iiori'n at said corners, said matrix having the diagonals thereof substantially vertical and horizontal respectively, said matrix the foot thereof, the lowermost portion of the matrix being substantially horizontal.

and the uppermost portion of the matrix being inclined toward the head of the mold, a gas outlet at the head of the mold and leading from the uppermost portion 01 the ma trix, and the'toot of the matrix comprising substantially a portion of a hollow sphere.

6. A horizontal ingot mold for casting steel ingots comprising a mold body in sections, said body being provided with a matrix having a substantially rectangular cross-section, the corners of the matrix being rounded to cause radial crystallization to form at said corners, said matrix having the diagonals thereof substantially vertical. and horizontal respectively, said matrix tapering from the head of the mold toward the toot thereof, the lowermost portion of the matrix being substantially horizontal and the uppermost portion of the matrix being inclined toward the head of the mold, a gas outlet at the head of the mold and leading from the uppermost portion of the matrix, the foot of the matrix comprising substantially a portion of a hollow sphere, and an inlet conduit adjacent the head ot the mold to feed molten steel to the said matrix.

7. A horizontal mold for casting steel ingots and the like, comprising a mold body formed in longitudinal sections and provided with a matrix having a substantially horizontal axis, and a conduit to introduce molten steel into said mold set within the mold body having an opening into said matrix at one end thereof with the upper limit of said opening being above the iighest portion of said matrix.

S. A mold for casting horizon-a1 ingots comprising a bottom trouglrlilre section, a top trough-like section, the troughs oi each oi? said sections forming when assembled portions oi the matrix of the mold, the foot of the said matrix being formed as a por tion of a spherical surface, and means to reed molten steel to the head ct said matrix inan initially directed horizontal stream, and a gas outlet adjacent said means.

9. A. horizontal mold "for casting steel ingots and the like comprising a trough-like bottom section, an inverted trough-like top section adapted to set on the bottom section to complete the mold matrix, the side edges forming the junction between the top section and the bottom section being inclined outwardly and downwardly.

10. A horizontal chill mold for casting steel ingots and the like comprising a troughlilre bottom section, an inverted trough-like top section adapted to set on the bottom section to complete the mold matrix, the side edges forming the junction between the top section and the bottom section inclined outwardly and downwardly, the top section being wider than the bottom section to provide overhanging edges adapted to form supports for the top section when said top section is set down on the casting floor.

11. A horizontal chill mold for casting steel ingots and the like, comprising a trough-like bottom section, an inverted trough-like top section, means to center the top section over the bottom section, said bottom and top sections being formed with a matrix having a substantially rectangular cross-section with the diagonals thereof substantially vertical and horizontal respectively, the side walls of the matrix tapering from the head toward the foot, the corners of the matrix being rounded, and with the toot of said matrix being a rounded surface.

12. [in ingot mold for casting horizontal ingots comprising two sections, one arranged. above the other on horizontal lines of separation, with the highest part of the matrix along the apex of the angle formed by two sides thereof and having the foot of the matrix comprising a curved surface.

13. An ingot mold for casting horizontal in ots comprising two sections, one arranged above the other on horizontal lines of separation, with the highest part of the matrix along the apex of the angle formed by two sides thereof and having the foot of the matrix formed as part of a hollow spherical surface.

14. An ingot mold for casting horizontal ingots comprising two Vshaped sections of variable heat absorbing capacity, one arranged above the other on horizontal lines of separation to form a matrix substantially rectangular in cross-section, with the highest part along the apex of angle formed by two sides thereof and having the foot of the matrix comprising an inwardly curved surface.

15. An ingot mold for casting horizontal ingots comprising two V-shaped sections of variable heat absorbing capacity, one arranged above the other on horizontal lines of separation to form a matrix substantially rectangular in cross-section and tapered toward the head end, with the highest part along the apex of angle formed by two sides thereof and having the foot of the matrix con'iprising an inwardly curved surface.

16. An ingot mold for casting horizontal ingots comprising two V-shaped sections of variable heat absorbing capacity, one arranged above the other on horizontal lines of separation to form a matrix substantially rectangular in cross-section and tapered to ward the head end, with the highest part along the apex of angle formed by two sides thereof and having the foot of the matrix formed as part of a hollow spherical surface.

17. A mold for casting horizontal ingots comprising a bottom V-shaped trough-like section, and a top V-shaped trough-like section in inverted position to fit upon said bottom section, each of said sections embodying a portion of the matrix therein, the foot of said matrix being formed as a portion of a spherical surface.

18. A mold for casting horizontal ingots comprising a bottom V-shaped trough-like section, a top V-shaped trough-like section in inverted position to fit upon said bottom section, each of said sections embodying a portion of the matrix therein, the foot of said matrix being formed as a portion of a spherical surface, and means to feed molten metal to the head of said matrix in an initially directed horizontal stream.

19. A mold for casting horizontal ingots comprising a bottom trough-like section, a top trough-like section inverted in position to form with said bottom section a matrix, a runner tile extending transversely of the end of said matrix, and means on each section to engage said runner tile and hold it in position.

20. A mold for casting horizontal ingots comprising a bottom trough-like section, a top trough-like section, the troughs of each of said sections forming when assembled portions of the matrix of the mold, and a runner tile set transversely at the head of said matrix having means to feed to the matrix an initially directed horizontal stream of molten metal, and a gas outlet adjacent said runner tile.

\ JOHN EDMUND PERRY. 

